Home / 75,126.12-103,679.01-43,297.05

Finding the Fourth Proportional to 75,126.12, 103,679.01 and 43,297.05

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Solution

The fourth proportional to 75,126.12, 103,679.01 and 43,297.05 is: 59,752.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,126.12 : 103,679.01 = 43,297.05 : x
  2. Step 2: Convert to fraction form
    75,126.12/103,679.01 = 43,297.05/x
  3. Step 3: Cross multiply
    75,126.12x = 103,679.01 × 43,297.05
  4. Step 4: Simplify right side
    75,126.12x = 4,488,995,279.92
  5. Step 5: Solve for x
    x = 4,488,995,279.92/75,126.12
  6. Step 6: Final answer
    x = 59,752.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.